Gas water-heater.



PATENTED FEB. 21, 1905.

D. J. F. BUCK.

GAS WATER HEATER.

APPLICATION I'ILED AUG. 20. 1904.

2 SHEETS-SHEET 1.

Emil w ijf Q1 I m 004M144 UPILEH PATENTED FEB. 21, 1905.

D. J. F. BUCK.

GAS WATER HEATER.

APPLICATION FILED AUG. 20. 1904.

2 SHEETS-SHEET 2.

Patented February 21, 1905.

PATENT Oriana.

DANIEL JOHN F. BUCK, OF CHICAGO, ILLINOIS.

GAS WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 783,243, dated February21, 1905.

Application filed August 20, 1904. Serial No. 221,470.

T r) all 1071,0121, it may concern:

Be it known that I, DANIEL JOHN F. BUCK, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Gas ater-Heaters, (CaseNo. 1,) of which the following is a full, clear, concise, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification.

My invention relates to water-heaters, and its object is to provide moreeflicient and more inexpensive means for heating water in a tank orboiler, particularly where the heated water is being drawn while heatingis in operation.

My invention is of particular adaptation for heating water in theordinary kitchen-boilers or in boilers connected with bath-tubs and maybe applied to such boilers without greatly modifying their construction.

As a fuel I prefer to use gas, and I provide a heating chamber or ovenbelow the boiler part and dispose one or more gas-burners near thebottom thereof. Above each burner is disposed a tier of annularwater-heating chambers, the lower chambers being connected with thecold-water supply and the upper chambers of the tier being connectedwith pipes which deliver the. hot water to the top of the boiler, fromwhence it may be drawn and utilized. The pipes which carry the hot-waterpass through fines which pass longitudinally through the interior of theboiler and the residual heat from the water heating chambers passesthrough these fines and serves to heat the water surrounding the finesand also to still further heat the hot water in the pipes disposedwithin the fiues, the pipes being of less external diameter than theinternal diameter of the lines. Any number of burners and acorresponding number of tiers of water-sections maybe employed, and-thusthe water heated in any desired time, or the water may be kept at adesired temperature while continually [lowing from the boiler.

My invention will be better understood by reference to the accompanyingdrawings, in

an elevation view, the casing and one tier of water-sections being shownin section. Fig. 3 shows an elevation view of a modified form of heater,the shell being shown in section. Fig. 4 is plan view of aheater-section. Fig. 5 is a sectional view of the heater-section, takenon line 5 5, Fig. 4. Fig. 6 shows the manner of connecting together thelower sections of the tiers. Fig. 7 shows a top View of Fig. 1. Fig. 8is a sectional View taken on line 8 8 of Fig. 2. Fig. 9 shows aconnection between a flue-pipe and a water-pipe, and Fig. 10 shows themanner of securing a threaded sleeve to the sheet material of the boilerfor receiving threaded ends of pipes.

Like characters of reference refer to like parts throughout the variousfigures.

An ordinary boiler 1, such as is used in the kitchen for connection witha stove or range, is mounted upon suitable standards 2 2, surrounded byan inclosing shell 8 of sheet material. A fuel-supply pipe 4 maysurround the shell 3 near lower end thereof, with which pipe any numberof burners 5 may be connected, which burners may be ordinary gasburners.Above each burner is disposed a tier 6 of water-heater sections 7 7,connected serially together, the lower sections of the tiers beingconnected with a pipe 8. passing through the base 9 of the boiler andextend ing a slight distance within the boiler. As shown in Fig. 6, thepipe 8 may be connected directly with one lower section and allthe lowersections connected serially together by means of connecting-nipples 1O10, and for cleaning purposes a pipe 11 may lead from the last lowersection in the series to the outside of the shell 3 and there beprovided with a normally closed valve 12. Each heater-section is annularin shape. as shown in Figs. I

and 5, and provided with inlet-openings 13 13 and outlet-openings 14 14,the central openings 15 in each tier being preferably alined. 'Io causethorough agitation of the water within each heater-section and to insurerapid heating thereof,I angularly displace the inlet from the outletopenings, the inlet-openings being shown as disposed diametrically atopposite sides of the central opening and displaced one hundred andeighty degrees from the outlet-openings, which are also disposeddiametrically and opposite the central openings. The water to pass froman inlet to an outlet opening must thus circulate ninety degrees throughthe section, and a thorough mixture of the warm with the colder part isinsured and a rapid heating of the entire water accomplished. Each tieris disposed directly above a burner and the heat from the burnerscirculates about the sections and passes through the central openings,the residual heat and products of combustion passing upwardly throughflue-pipes 16 16, which extend longitudinally through the interior ofthe boiler and which are secured at their ends in the upper wall 17 andthe lower wall 9 of the boiler. The upper end of each flue is threadedand lock-nuts 18 and 19 engage the threaded ends, respectively, on theinside and outside of the boiler and clamp between them the boiler-head17. The lower ends of the fines are threaded to sleeves 20, which arepreferably riveted to the lower wall 9, as shown in Fig. 10. Cold wateris supplied through the pipe 21,which may extend through the head of theboiler and downwardly to within a short distance of the bottom of theboiler. The cold water after reaching the level of the pipe 8 flowstherethrough and into the lower sections of the tiers and distributesitself and passes upwardly through the successive sections of each tier.The top section of each tier is connected with a pipe 22, which is ofless diameter than the fluepipes. Each boiler-pipe extends through oneof the flue-pipes and emerges through the wall of the flue-pipe andcommunicates with the upper part of the boiler. As the cold water thuspasses from the boiler to the lower sections it is gradually and quicklyheated on its passage through the successive sections of the tiers andthe hot water then passes upwardly through the pipes 22 and is deliveredinto the upper part of the boiler, from whence it may be drawn throughan outlet 23. The residual heat and the products of combustion passupwardly through the fines and heat is extracted by the water within theboiler surrounding the fines, and the water in the water-pipes is alsofurther heated by the ascending hot gases, which leave the flues wellspent of their heat. The pipes 22 at their upper ends may terminate inelbows 24:, which engage nipples 25, the nipples extending throughopenings in the walls of the fiues and engaged by lock-nuts 26 at theoutside of the flues, the pipes 22 being thus firmly held in position.The pipe 8 extends into the boiler a slight distance for the purpose ofpreventing sediment from entering the heater-sections. An asbestos wall27 may also be provided below the burners for preventing the deflectionand escape of heat. Doors 28 28 may also be provided in the shell 3 andsuitably disposed to allow access to the burners, which are primarilycontrolled by supply-valves 29 29,

disposed at the outside. Left and right hand nipples, as shown in Fig.6, furnish convenient and simple means for connecting together theinletand outlet openings of the successive heater-sections, and each nipplemay be provided with a flange 30, adapted for engagement by a flatwrench.

As before stated, any number of burners may be used or any number oftiers of heatersections or any number of sections in a tier may beemployed, depending upon conditions and upon the degree of heat to befurnished and upon the rapidity with which the water is to be heated. Itis also unnecessary to use a flue and a water-pipe for each tier, and acommon water-pipe might lead the hot water from the tiers and passthrough a single flue or the several water-pipes from the tiers may allpass through a single flue. One modified arrangement of this kind isshown in Fig. 3, in which two burners are employed and two tiers ofheater-sections, a pipe 31 leading from the top of each tier and passingthrough the lower wall 9 of the boiler into an elbow 32, which leadsinto a common water-pipe 33, which discharges near the top of theboiler. A common flue 34 leads through the top of the boiler and throughthe water-pipe 33, communicating at its lower end with theheatingchamber, receiving and conveying therefrom the gases, whichfurther serve to heat the water in the water-pipe 33 on their upwardpassage. The cold water enters through the pipe 21 and is led to theheater-sections through the pipe 8. The connections between the elbows32 and the pipes 31. are made water-tight by means of lock-nuts 34:,which engage the pipes, and the lower walls 9 clamp between theselock-nuts and the flanges of the elbows 32. The water-pipe 33 may bethreaded into the sleeve 35 and the flue-pipe 3 1 threaded into thereduced end 36 of the pipe 33', thusv forming an air-tight joint and atthe same time forming rigid connection between th e/ pipes. Any numberoftiers may be employed, each connecting through an elbow w it li thecommon pipe 33. The heater-sections may all be symmetrical, and one ofthe openings in the upper and lower sections of the tiers may beprovided with a plug 37.

Many other modifications besides those referred to may be made withoutdeparting from the spirit of the invention, and I do not, therefore,wish to limit myself to the constructions and modifications outlined.

I desire to secure by Letters Patent 1. In a water-heater, thecombination with a tubular vertical boiler, of a combustionchamber belowsaid boiler, a plurality of gasburners arranged in one horizontal planeat the bottom of said combustion-chamber, a tier of annularheater-sections arranged vertically above each burner, the sections ofeach tier being connected serially together, a pipe leading from thebottom of the boiler and connected with the lower sections of each tieronly. to deliver the cold Water thereto, the water in the lower sectionsupon being heated by the burners rising to the top section of the tier,an independent pipe leading from the top section of each tier andpassing upwardly through the boiler to discharge hot water near the topthereof, and a fine surrounding each pipe, said fiues passing from thecombustionchamber entirely through said boiler and connected with theatmosphere at the top of the boiler.

2. In a water-heater, the combination with a vertical tubular boiler, ofa combustionchamber upon which said boiler is mounted, a plurality ofgas-burners arranged in the same horizontal plane at the bottom of thecombustion-cham her, a tier of flat annular water-sections arrangedvertically above each burner, inlet and outlet openings for eachsection, said inlet and outlet openings being each disposed ondiametrical lines angularly displaced one hundred and eighty degreesfrom each other whereby the water flowing serially upward through saidsections is thoroughly agitated, a pipe leading from the bottom of theboiler and connected with the lower section of each tier only to leadthe cold water thereto, an independent pipe leading from the top sectionof each tier and passing vertically through the interior of the boilerto discharge the heated water at the top thereof, and a flue surroundingeach pipe, said flues passing entirely through the boiler and connectingthe combustion-chamber with the atmosphere at the top of the boiler.

3. In a water-heater, the combination with a vertical tubular boiler, ofstandards for supporting said boiler, a cylindrical shell surroundingsaid standards and forming a combustion-chamber below said boiler. aplurality of burners arranged in the same horizontal plane at the bottomof the combustion-chamher, a supply-pipe for said burners surroundingthe chamber at the exterior thereof, an independent valve controllingeach burner, a

vertical tier of flat annular water-sections disposed above each burner,a pipe connecting the lower part of the boiler with the lower section ofeach tier, the sections of each tier being connected serially together,whereby the water from the lower section passes vertically upward to thetop section, while being heated, an independent pipe leading from eachtop section vertically upward through the interior of the boiler todeliver the heated water to the top thereof, and a flue surrounding eachpipe, said fiues connecting the combustion-chamber with the atmosphereat the top of the boiler.

4. In a water-heater, the combination with a vertical tubular boiler, ofstandards upon which said boiler is mounted. a cylindrical shellsurrounding said standards to form a combustion chamber below saidchamber, a plurality of burners arranged in the same horizontal plane atthe bottom of the combustionchamber, a supply-pipe for said burnersencircling said chamber at the exterior thereof, an independentcontrolling-valve for each burner, a vertical tier of flat, annular andthinwalled water -seetions disposed above each burner, inlet and outletopenings for said sections connected together, said inlet and outletopenings being disposed on diametrical lines angularly displaced atright angles to each other whereby the water flowing through the tier isthoroughly agitated, a pipe connecting the lower part of the boiler withthe lowest section of each tier, an independent pipe leading from eachtop tier through the interior of the boiler to discharge the heatedwater at the top thereof, and a line surrounding each pipe andconnecting the combustionchamber with the atmosphere at the top of theboiler.

In witness whereof I hereunto subscribemy name this 18th day of August,A. D. 1904.

DANlEL JOHN F. BUCK. Witnesses:

HARVEY L. HANSON, HENRY J. BUCK.

